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Bug 355199

Summary: org.eclipse.swt.SWTError: Item not removed while editing a MANIFEST.MF
Product: [Eclipse Project] Platform Reporter: Stephane Begaudeau <stephane.begaudeau>
Component: SWTAssignee: Platform-SWT-Inbox <platform-swt-inbox>
Status: CLOSED WONTFIX QA Contact:
Severity: major    
Priority: P3 CC: daniel_megert, remy.suen
Version: 3.6.2   
Target Milestone: ---   
Hardware: PC   
OS: Windows 7   
Whiteboard: stalebug
Attachments:
Description Flags
screenshot of the error none

Description Stephane Begaudeau CLA 2011-08-19 05:37:19 EDT 
When I am editing some files in the Manifest editor the following error appears. I am running on Eclipse 3.6.2 on Windows 7. After the error, a pop up appear stating that an error has appeared in the workbench and that I need to restart my Eclipse.

Session Data:
eclipse.buildId=M20110210-1200
java.version=1.6.0_26
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_FR
Framework arguments:  -product org.eclipse.sdk.ide
Command-line arguments:  -product org.eclipse.sdk.ide -data <path_to_my_workspace> -dev file:<path_to_my_workspace>/.metadata/.plugins/org.eclipse.pde.core/OD4IS 2.2/dev.properties -os win32 -ws win32 -arch x86 -consoleLog

Stack Trace:
org.eclipse.swt.SWTError: Item not removed
at org.eclipse.swt.SWT.error(SWT.java:4109)
at org.eclipse.swt.SWT.error(SWT.java:3998)
at org.eclipse.swt.SWT.error(SWT.java:3969)
at org.eclipse.swt.widgets.Widget.error(Widget.java:468)
at org.eclipse.swt.widgets.CoolBar.destroyItem(CoolBar.java:347)
at org.eclipse.swt.widgets.CoolItem.destroyWidget(CoolItem.java:202)
at org.eclipse.swt.widgets.Widget.release(Widget.java:818)
at org.eclipse.swt.widgets.Widget.dispose(Widget.java:446)
at org.eclipse.jface.action.ToolBarContributionItem.updateSize(ToolBarContributionItem.java:639)
at org.eclipse.jface.action.ToolBarContributionItem.update(ToolBarContributionItem.java:595)
at org.eclipse.jface.action.CoolBarManager.update(CoolBarManager.java:958)
at org.eclipse.ui.internal.WorkbenchWindow.updateActionBars(WorkbenchWindow.java:3186)
at org.eclipse.ui.internal.WorkbenchWindow.updateActionSets(WorkbenchWindow.java:3265)
at org.eclipse.ui.internal.WorkbenchPage$ActionSwitcher.updateActionSets(WorkbenchPage.java:537)
at org.eclipse.ui.internal.WorkbenchPage$ActionSwitcher.updateActivePart(WorkbenchPage.java:370)
at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3535)
at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3077)
at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279)
at org.eclipse.ui.internal.EditorPane.requestActivation(EditorPane.java:98)
at org.eclipse.ui.internal.PartPane.handleEvent(PartPane.java:237)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1058)
at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1424)
at org.eclipse.swt.widgets.Shell.WM_MOUSEACTIVATE(Shell.java:2297)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4205)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1598)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2038)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454)
at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2362)
at org.eclipse.swt.widgets.Text.callWindowProc(Text.java:255)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Text.windowProc(Text.java:2170)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886)
at org.eclipse.swt.internal.win32.OS.PeekMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.PeekMessage(OS.java:3024)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3652)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
Comment 1 Dani Megert CLA 2011-08-19 06:00:55 EDT 
(In reply to comment #0)
> When I am editing some files in the Manifest editor the following error
> appears. I am running on Eclipse 3.6.2 on Windows 7. 
Can you give more precise steps?
Comment 2 Stephane Begaudeau CLA 2011-08-19 06:15:35 EDT 
Created attachment 201773 [details]
screenshot of the error

I am running on a dual monitor configuration on windows 7.

I open a MANIFEST.MF from a new plugin project and I open next to it another MANIFEST.MF from another project because my new project needs the same configuration as the other project. I want to create a new extension similar to the one on my other project (a pop up menu "org.eclipse.ui.popupMenus") and if I select something in the other editor editor the error appear.

In the screenshot, I had just added the new extension in the editor on the left and I clicked in the editor on the right to see how the other extension was defined. I clicked just under the "org.eclipse.ui.popupMenus" in the tree viewer to have the focus on this editor and the error appear. After that I can click pretty much anywhere in one of those editors but if it changes he focus from one editor to the other the problem appear.
Comment 3 Remy Suen CLA 2011-08-19 07:46:02 EDT 
I suspect this is a duplicate of bug 355199.
Comment 4 Remy Suen CLA 2011-08-19 07:46:14 EDT 
Whoops, I mean bug 351398. :)
Comment 5 Stephane Begaudeau CLA 2011-08-23 05:39:13 EDT 
(In reply to comment #4)
> Whoops, I mean bug 351398. :)

From what I have seen the problem was coming in this bug entry from MultiMon Taskbar 2.1, I don't have this software installed but I am using DisplayFusion 3.3.1 to have a different wallpaper on each screen. After deactivating it, the problem seems to have disappear. The problem also appears in Eclipse 3.7.0.
Comment 6 Lars Vogel CLA 2019-11-14 03:16:01 EST 
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

If the bug is still relevant, please remove the "stalebug" whiteboard tag.